Показатель результативности вырос.

Because показатель is the subject of the sentence — it is the thing that increased.

In Russian, the subject of a finite verb is usually in the nominative case.

• показатель = indicator / metric
• вырос = increased / rose

So the structure is basically:

Показатель + вырос
The indicator + increased

Because it depends on показатель and means indicator of effectiveness / performance.

This is a very common Russian pattern:

• показатель чего? = indicator of what?
• результативности = of effectiveness / performance

So:

• показатель результативности = performance indicator, literally indicator of effectiveness

This is a noun + noun structure where the second noun is often in the genitive.

Compare:

• уровень жизни = standard of living
• центр города = city center
• показатель качества = quality indicator

вырос is the past tense, masculine singular form of the verb вырасти.

So:

• infinitive: вырасти = to grow, to increase
• past masculine: вырос
• past feminine: выросла
• past neuter: выросло
• past plural: выросли

It is masculine because показатель is a masculine noun.

In the Russian past tense, verbs agree with the subject in gender and number.

Since показатель is:

• singular
• masculine

the verb must also be:

• singular
• masculine

So you get:

• Показатель вырос.
• If it were feminine: Оценка выросла.
• If it were plural: Показатели выросли.

This is a question of aspect.

• расти / рос = imperfective
• вырасти / вырос = perfective

In this sentence, вырос presents the increase as a completed change or a result: the indicator ended up higher than before.

Very roughly:

• рос = was growing / was increasing
• вырос = grew / increased / went up

So:

• Показатель рос весь год. = The indicator was increasing all year.
• Показатель вырос на 10%. = The indicator increased by 10%.

Because this sentence reports the result, вырос is the natural choice.

No. Russian uses расти / вырасти very naturally for many kinds of increase, not just physical growth.

It can be used for:

• prices
• numbers
• demand
• profits
• indicators
• percentages

Examples:

• Цены выросли. = Prices rose.
• Спрос вырос. = Demand increased.
• Прибыль выросла. = Profit increased.

So Показатель результативности вырос sounds normal, especially in formal or analytical language.

Yes, often you can.

• Показатель результативности вырос.
• Показатель результативности увеличился.

Both can mean the performance indicator increased.

The difference is mostly stylistic:

• вырос sounds a bit more natural and vivid
• увеличился sounds a bit more formal, technical, or neutral

In reports, statistics, and business language, both are common.

Yes, it is natural, but it is definitely formal or professional in tone.

You are likely to see this kind of phrase in:

• reports
• analytics
• education
• management
• business
• official documents

A casual conversation would usually use simpler wording, but in formal Russian this kind of noun phrase is very common.

Yes. Russian word order is flexible.

The neutral order here is:

Показатель результативности вырос.

But you could also say:

Вырос показатель результативности.

That version puts more focus on the fact of increase, especially in written or report-like style.

So both are possible, but the original sentence is the most straightforward and neutral.

Because Russian has no articles.

So показатель can mean:

• an indicator
• the indicator

The exact meaning depends on context.

In English you must choose a or the, but in Russian that information is usually understood from the situation.

The stress is:

• показа́тель
• результати́вности
• вы́рос

So the whole sentence is:

Показа́тель результати́вности вы́рос.

Stress matters in Russian, so it is worth learning words together with their stressed syllables.

The pattern is:

[subject in nominative] + [verb in past tense]

More specifically:

показатель результативности = the subject
вырос = the predicate / verb

So this is a very simple Russian sentence structurally, even though the noun phrase is a bit formal.

You can model similar sentences on it:

• Уровень продаж вырос. = Sales level increased.
• Показатель качества вырос. = The quality indicator increased.
• Объём производства вырос. = Production volume increased.

They are related, but not the same.

• результат = result, outcome
• результативность = effectiveness, ability to produce results, performance

So:

• показатель результата would sound like indicator of a result
• показатель результативности means indicator of effectiveness/performance

In other words, результативность is the more abstract quality here, which is why it fits better in this sentence.

You simply add не before the verb:

Показатель результативности не вырос.

That means:

• The performance indicator did not increase
• or has not increased

This is the normal way to negate a past-tense verb in Russian.